﻿using System;
using System.Windows;
using System.Windows.Controls;

namespace SingleFileUpload
{
	public partial class App : Application
	{

		public App()
		{
			this.Startup += this.Application_Startup;
			this.Exit += this.Application_Exit;
			this.UnhandledException += this.Application_UnhandledException;

			InitializeComponent();
		}

		private void Application_Startup(object sender, StartupEventArgs e)
		{
			string defaultColor = "White";

			if (e.InitParams.ContainsKey("DefaultColor") && !string.IsNullOrEmpty(e.InitParams["DefaultColor"]))
				defaultColor = e.InitParams["DefaultColor"];


			Setter gridBackgroundColorSetter = new Setter(Grid.BackgroundProperty, defaultColor);
			((Style)this.Resources["GridStyle"]).Setters.Add(gridBackgroundColorSetter);

			Setter borderBackgroundColorSetter = new Setter(Border.BackgroundProperty, defaultColor);
			((Style)this.Resources["BorderStyle"]).Setters.Add(borderBackgroundColorSetter);

			this.RootVisual = new MainPage(e.InitParams);
		}

		private void Application_Exit(object sender, EventArgs e)
		{

		}

		private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
		{
			// If the app is running outside of the debugger then report the exception using
			// the browser's exception mechanism. On IE this will display it a yellow alert 
			// icon in the status bar and Firefox will display a script error.
			if (!System.Diagnostics.Debugger.IsAttached)
			{

				// NOTE: This will allow the application to continue running after an exception has been thrown
				// but not handled. 
				// For production applications this error handling should be replaced with something that will 
				// report the error to the website and stop the application.
				e.Handled = true;
				Deployment.Current.Dispatcher.BeginInvoke(delegate { ReportErrorToDOM(e); });
			}
		}

		private void ReportErrorToDOM(ApplicationUnhandledExceptionEventArgs e)
		{
			try
			{
				string errorMsg = e.ExceptionObject.Message + e.ExceptionObject.StackTrace;
				errorMsg = errorMsg.Replace('"', '\'').Replace("\r\n", @"\n");

				System.Windows.Browser.HtmlPage.Window.Eval("throw new Error(\"Unhandled Error in Silverlight Application " + errorMsg + "\");");
			}
			catch (Exception)
			{
			}
		}
	}
}
